Answer:
The amount of tinplate is [tex]2500\pi [/tex]
Step-by-step explanation:
We have to find amount tinplate used in 10 cylindrical cans
So, we will find surface area of one can
and then we can find total surface area
that would be total amount of tin plate
we are given
diameter=d=10cm
so, radius=r=5cm
height=h=20cm
now, we can find surface area
[tex]S=2\pi rh+2\pi r^2[/tex]
now, we can plug values
[tex]S=2\pi (5)(20)+2\pi (5)^2[/tex]
[tex]S=200\pi +50\pi[/tex]
[tex]S=250\pi[/tex]
now, we can find total amount of tin plate
[tex]T=10\times 250\pi[/tex]
[tex]T=2500\pi[/tex]
